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Twin State Mining, Inc. safety activity

MSHA violations, accident reports and inspections across the current mine portfolio.

2025-01-01 – 2026-10-31Database snapshot · 2026-10-31

Safety activity

  1. Roof control plan.

    violationRecord 5021173
    MINE NO. 44 · 4609523

    30 CFR 75.220(a)(1) · $432.00 proposed penalty

  2. Mine ventilation plan; submission and approval.

    violationRecord 5021172
    MINE NO. 44 · 4609523

    30 CFR 75.370(a)(1) · $336.00 proposed penalty

  3. Spot Inspection

    inspectionRecord F004B0D
    MINE NO. 44 · 4609523

    3.0 on-site hours reported

  4. Construction and repair of seals.

    violationRecord 5020292
    MINE NO. 44 · 4609523

    30 CFR 75.337(e)(1) · $151.00 proposed penalty

  5. Health Technical Investigation

    inspectionRecord F005E77
    MINE NO. 44 · 4609523

    13.0 on-site hours reported

  6. Cited standard: 30 CFR 70.206(e)(3)

    violationRecord 5097260
    MINE NO. 44 · 4609523

    30 CFR 70.206(e)(3) · $151.00 proposed penalty

  7. Health Technical Investigation

    inspectionRecord F0219C8
    MINE NO. 44 · 4609523

    7.0 on-site hours reported

  8. Spot Inspection

    inspectionRecord F004B04
    MINE NO. 44 · 4609523

    2.5 on-site hours reported

  9. Respirable dust standards.

    violationRecord 5020279
    MINE NO. 44 · 4609523

    30 CFR 70.100(a)(2) · Significant and substantial (S&S) · $697.00 proposed penalty

  10. Electrical connections or splices; suitability.

    violationRecord 5020267
    MINE NO. 44 · 4609523

    30 CFR 75.514 · Significant and substantial (S&S) · $549.00 proposed penalty

  11. Maintenance of incombustible content of rock dust.

    violationRecord 5020266
    MINE NO. 44 · 4609523

    30 CFR 75.403 · $151.00 proposed penalty

  12. Escapeway maps.

    violationRecord 5020265
    MINE NO. 44 · 4609523

    30 CFR 75.1505(b) · $818.00 proposed penalty

  13. Escapeway maps.

    violationRecord 5020264
    MINE NO. 44 · 4609523

    30 CFR 75.1505(b) · $818.00 proposed penalty

  14. Protection of trailing cables.

    violationRecord 5099324
    MINE NO. 44 · 4609523

    30 CFR 75.606 · Significant and substantial (S&S) · $1,818.00 proposed penalty

  15. Inspection of fire suppression devices.

    violationRecord 5020263
    MINE NO. 44 · 4609523

    30 CFR 75.1107-16(b) · $245.00 proposed penalty

  16. Inspection of fire suppression devices.

    violationRecord 5020262
    MINE NO. 44 · 4609523

    30 CFR 75.1107-16(b) · $818.00 proposed penalty

  17. Mechanical equipment guards.

    violationRecord 5020261
    MINE NO. 44 · 4609523

    30 CFR 75.1722(b) · $165.00 proposed penalty

  18. Water sprinkler systems; arrangement of sprinklers.

    violationRecord 5020260
    MINE NO. 44 · 4609523

    30 CFR 75.1101-8(e) · $818.00 proposed penalty

  19. Installation of water sprinkler systems; requirements.

    violationRecord 5020259
    MINE NO. 44 · 4609523

    30 CFR 75.1101-7(c) · $818.00 proposed penalty

  20. Preshift examination at fixed intervals.

    violationRecord 5020258
    MINE NO. 44 · 4609523

    30 CFR 75.360(f) · $226.00 proposed penalty

  21. Maintenance of belt conveyors and belt conveyor entries.

    violationRecord 5020257
    MINE NO. 44 · 4609523

    30 CFR 75.1731(a) · $398.00 proposed penalty

  22. Automatic fire sensor and warning device systems; examination and test requirements.

    violationRecord 5020256
    MINE NO. 44 · 4609523

    30 CFR 75.1103-8(c) · $151.00 proposed penalty

  23. Permissible electric face equipment; maintenance.

    violationRecord 5020255
    MINE NO. 44 · 4609523

    30 CFR 75.503 · $465.00 proposed penalty

  24. Automatic fire sensor and warning device systems; installation; minimum requirements.

    violationRecord 5020254
    MINE NO. 44 · 4609523

    30 CFR 75.1103-4(a)(1)(iv) · $245.00 proposed penalty

  25. Power wires and cables; insulation and protection.

    violationRecord 5095098
    MINE NO. 44 · 4609523

    30 CFR 75.517 · Significant and substantial (S&S) · $2,712.00 proposed penalty

Sources and definitions

MSHA Violations (issue date), Accidents (accident date) and Inspections (begin date).

Violation titles use current CFR headings to identify the cited rule; they are not the inspector’s account of what happened.

Status is from the current MSHA Mines snapshot, not the selected reporting period. Closed records can retain their last reported controller/operator.

Counts describe published rows, including contractor records; accident records are not distinct incidents or numbers of people injured.

Zero means no matching records in the imported sources, not proof of no events. Historical coverage differs by source; absence before a source begins reporting is not a zero incident rate. Invalid or absent dates and records after the snapshot are excluded.

S&S means SIG_SUB=Y. Fatality records use DEGREE_INJURY_CD=01. Proposed penalties are not final assessed or paid amounts; missing dollar values are omitted.

Inspection hours are SUM_TOTAL_ON_SITE_HOURS attributed to the inspection start date, without supervisor/trainee hours. Missing hours are omitted; a started inspection may still be open.

Portfolio totals use current mine membership, including events before the current owner or operator's tenure.